-
公开(公告)号：EP3056701A1
公开(公告)日：2016-08-17
申请号：EP14852286.5
申请日：2014-10-08
申请人： Isuzu Motors Limited
CPC分类号： F01N3/208 , B01D53/9431 , B01D53/9495 , B01D2251/2067 , F01N3/021 , F01N3/103 , F01N3/106 , F01N13/008 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2560/021 , F01N2560/12 , F01N2610/02 , F01N2900/0601 , F01N2900/1602 , F01N2900/1622 , F02D9/02 , F02D41/0097 , F02D2009/0294 , Y02T10/24
摘要： The present invention relates to an exhaust purification system and detects an internal NH 3 adsorption amount with high precision. An exhaust purification system includes an SCR catalyst (32) disposed at an exhaust system of an engine (10) for using ammonia that is generated from urea water as a reducing agent to reduce and purify NOx contained in exhaust gas, a urea water injection device (31) that injects urea water to the SCR catalyst (32), an inlet-side electrode (37) that detects capacitance within the SCR catalyst (32) at least from the vicinity of the inlet of the SCR catalyst to the vicinity of an intermediate section in an exhaust gas flowing direction, an outlet-side electrode (38) that detects the capacitance within the SCR catalyst (32) at least from the vicinity of the intermediate section to the outlet of the SCR catalyst in the exhaust gas flowing direction, and an NH 3 adsorption amount calculation unit (52) that calculates the ammonia adsorption amount within the SCR catalyst (32) on the basis of the capacitance entered from the inlet-side electrode (37) and the capacitance entered from the outlet-side electrode (38).
摘要翻译： 排气净化装置技术领域本发明涉及排气净化装置，能够高精度地检测内部的NH 3吸附量。 本发明提供一种排气净化系统，其具有：配置于发动机（10）的排气系统的SCR催化剂（32），其使用由尿素水生成的氨作为还原剂，对排气中所含的NOx进行还原净化;尿素水喷射装置 （31），其将尿素水喷射到所述SCR催化剂（32）;入口侧电极（37），其至少从所述SCR催化剂的入口附近到所述SCR催化剂 （38），所述出口侧电极（38）至少从所述SCR催化剂的所述中间部附近至所述排气流动方向上的所述出口检测所述SCR催化剂（32）内的电容 以及基于从所述入口侧电极（37）输入的电容和从所述出口侧电极（37）输入的电容计算所述SCR催化剂（32）内的氨吸附量的NH3吸附量计算单元（52） （38）。
-
公开(公告)号：EP3056699A1
公开(公告)日：2016-08-17
申请号：EP14851549.7
申请日：2014-10-08
申请人： Isuzu Motors Limited
IPC分类号： F01N3/023
CPC分类号： F01N9/002 , F01N3/0253 , F01N3/106 , F01N13/0093 , F01N13/0097 , F01N13/011 , F01N2560/12 , F01N2900/0601 , F01N2900/1602 , F01N2900/1606 , F02D41/029 , F02D41/1466 , F02D41/405 , F02D2200/0804 , F02D2200/0812 , Y02T10/47
摘要： The present invention relates to an exhaust purification system and detects an amount of PM accumulated in a DPF with high precision. The exhaust purification system includes: a DOC (21) provided on an exhaust path (12) of an engine (10); an upstream DPF (22) and a downstream DPF (23) that are provided on the exhaust path (12) at positions downstream of the DOC (21) to collect the PM contained in exhaust gas; electrodes (27) that detect a capacitance of the upstream DPF (22); a PM accumulation estimating unit (51) that estimates at least an amount of PM accumulated in the downstream DPF (23) on the basis of the capacitance received from the electrodes (27); and a forced regeneration control unit (53) that injects fuels into the DOC (21) and performs forced regeneration that burns and removes at least the PM accumulated in the downstream DPF (23) when the accumulated PM amount that is received from the PM accumulation estimating unit (51) surpasses a predetermined amount.
摘要翻译： 排气净化装置技术领域本发明涉及排气净化装置，能够高精度地检测DPF中堆积的PM的量。 该排气净化系统包括：设置在发动机（10）的排气通路（12）上的DOC（21）; 在所述排气通路（12）的位于所述DOC（21）的下游侧的位置设置的上游侧DPF（22）以及下游侧DPF（23） 检测上游DPF（22）的电容的电极（27）; PM蓄积推定部（51），基于从所述电极（27）输入的所述静电电容，至少推定所述下游侧DPF（23）中蓄积的PM的量。 以及强制再生控制部（53），其向所述DOC（21）喷射燃料，并进行强制再生，该强制再生在从所述PM蓄积部接收到的累计PM量时，至少燃烧并去除所述下游侧DPF（23） 估计单元（51）超过预定量。
-
公开(公告)号：EP3051082A1
公开(公告)日：2016-08-03
申请号：EP14849521.1
申请日：2014-09-26
申请人： Isuzu Motors Limited
CPC分类号： G01M15/102 , F01N11/00 , F01N2550/04 , F01N2560/05 , F01N2900/0408 , F01N2900/0416 , F01N2900/0418 , F01N2900/0422 , Y02T10/47
摘要： The present invention aims to determine a failure of a DPF with higher accuracy. A diagnosis device comprises: a diesel particulate filter (DPF) (52) that collects particulate matter (PM) in an exhaust gas; a resistive type PM sensor (20) that is provided at a downstream of the DPF (52) and that detects the amount of the PM from the current flowing through the PM deposited between electrodes (22), and for which regeneration is possible that combusts and eliminates the deposited PM; an actual regeneration interval calculating unit (41) that calculates the actual interval from the completion of the regeneration of the sensor (20) to the start of the next regeneration; a PM slippage amount calculating unit (43) that estimates the amount of PM slippage in the exhaust gas that is slipped through the DPF (52) assuming the DPF (52) being normal; an estimated regeneration interval calculating unit (45) that calculates, on the basis of the PM slippage amount, an estimated interval from the completion of the regeneration of the sensor (20) to the start of the next regeneration; and a DPF failure-normal determining unit (46) that determines whether the DPF (52) has failed or is normal by comparing the actual interval to the estimated interval.
摘要翻译： 本发明旨在以更高的准确度确定DPF的故障。 诊断装置包括：收集排气中的颗粒物质（PM）的柴油颗粒过滤器（DPF）（52） 设置在DPF（52）的下游侧，检测来自流过沉积在电极（22）之间的PM的电流的PM量的电阻式PM传感器（20），能够进行燃烧再生 并消除沉积的PM; 实际再生间隔计算单元（41），其计算从传感器（20）的再生完成到下一次再生的开始的实际间隔; PM推迟量计算单元（43），其假设所述DPF（52）正常时，估计通过所述DPF（52）滑动的排气中的PM滑移量; 估计再生间隔计算单元（45），其基于PM滑移量计算从传感器（20）的再生完成到下一个再生的开始的估计间隔; 以及DPF故障正常判定部（46），其通过将实际区间与估计区间进行比较来判定DPF（52）是否发生故障或正常。
-
公开(公告)号：EP3056699B1
公开(公告)日：2018-08-01
申请号：EP14851549.7
申请日：2014-10-08
申请人： Isuzu Motors Limited
CPC分类号： F01N9/002 , F01N3/0253 , F01N3/106 , F01N13/0093 , F01N13/0097 , F01N13/011 , F01N2560/12 , F01N2900/0601 , F01N2900/1602 , F01N2900/1606 , F02D41/029 , F02D41/1466 , F02D41/405 , F02D2200/0804 , F02D2200/0812 , Y02T10/47
摘要： The present invention relates to an exhaust purification system and detects an amount of PM accumulated in a DPF with high precision. The exhaust purification system includes: a DOC (21) provided on an exhaust path (12) of an engine (10); an upstream DPF (22) and a downstream DPF (23) that are provided on the exhaust path (12) at positions downstream of the DOC (21) to collect the PM contained in exhaust gas; electrodes (27) that detect a capacitance of the upstream DPF (22); a PM accumulation estimating unit (51) that estimates at least an amount of PM accumulated in the downstream DPF (23) on the basis of the capacitance received from the electrodes (27); and a forced regeneration control unit (53) that injects fuels into the DOC (21) and performs forced regeneration that burns and removes at least the PM accumulated in the downstream DPF (23) when the accumulated PM amount that is received from the PM accumulation estimating unit (51) surpasses a predetermined amount.
-
公开(公告)号：EP3029304A1
公开(公告)日：2016-06-08
申请号：EP14832681.2
申请日：2014-07-31
发明人： HANAWA Satoshi , IKAI Yoshiaki
CPC分类号： F02M26/47 , F02D21/08 , F02D41/144 , F02D41/1447 , F02D41/1456 , F02D2041/1433 , F02D2200/0618 , F02M26/33 , F02M26/46 , F02M26/49
摘要： The invention relates to an exhaust system state detection device that has a simple configuration and can effectively detect an exhaust gas temperature. The exhaust system state detection device includes an intake air oxygen concentration sensor (32) that detects an oxygen concentration of an intake air of an engine (10), an engine revolution sensor (30) and an accelerator position sensor (31) that in combination detect a running condition, an indicated thermal efficiency calculation unit (42) that calculates an amount of change in the indicated thermal efficiency of the engine (10) based on the intake air oxygen concentration, the fuel injection start timing, and a pre-stored first model formula defining the relation among the intake air oxygen concentration, the injection start timing, and the amount of change in the indicated thermal efficiency, and an exhaust gas temperature calculating unit (43) that calculates an exhaust gas temperature of the engine (10) based on the amount of change in the indicated thermal efficiency and a pre-stored second model formula defining the relation between the exhaust gas temperature and the amount of change in the indicated thermal efficiency.
摘要翻译： 本发明涉及一种排气系统状态检测装置，其具有简单的结构并能够有效地检测废气温度。 排气系统状态检测装置包括：检测发动机（10）的进气的氧浓度的进气氧浓度传感器（32），发动机转速传感器（30）和加速器位置传感器（31）的组合 检测运行状态，指示热效率计算单元（42），其基于进气空气氧浓度，燃料喷射开始定时和预存储来计算发动机（10）的指示热效率的变化量 第一模型公式，其界定进气空气氧浓度，喷射开始正时和所指示的热效率的变化量之间的关系，以及排气温度计算单元（43），其计算发动机（10）的排气温度 ）基于指示的热效率的变化量和预定义的第二模型公式，其定义了废气温度和量之间的关系 的热效率的变化。
-
公开(公告)号：EP3056701B1
公开(公告)日：2018-09-05
申请号：EP14852286.5
申请日：2014-10-08
申请人： Isuzu Motors Limited
CPC分类号： F01N3/208 , B01D53/9431 , B01D53/9495 , B01D2251/2067 , F01N3/021 , F01N3/103 , F01N3/106 , F01N13/008 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2560/021 , F01N2560/12 , F01N2610/02 , F01N2900/0601 , F01N2900/1602 , F01N2900/1622 , F02D9/02 , F02D41/0097 , F02D2009/0294 , Y02T10/24
摘要： The present invention relates to an exhaust purification system and detects an internal NH 3 adsorption amount with high precision. An exhaust purification system includes an SCR catalyst (32) disposed at an exhaust system of an engine (10) for using ammonia that is generated from urea water as a reducing agent to reduce and purify NOx contained in exhaust gas, a urea water injection device (31) that injects urea water to the SCR catalyst (32), an inlet-side electrode (37) that detects capacitance within the SCR catalyst (32) at least from the vicinity of the inlet of the SCR catalyst to the vicinity of an intermediate section in an exhaust gas flowing direction, an outlet-side electrode (38) that detects the capacitance within the SCR catalyst (32) at least from the vicinity of the intermediate section to the outlet of the SCR catalyst in the exhaust gas flowing direction, and an NH 3 adsorption amount calculation unit (52) that calculates the ammonia adsorption amount within the SCR catalyst (32) on the basis of the capacitance entered from the inlet-side electrode (37) and the capacitance entered from the outlet-side electrode (38).
-
公开(公告)号：EP3056700A1
公开(公告)日：2016-08-17
申请号：EP14851593.5
申请日：2014-10-08
申请人： Isuzu Motors Limited
CPC分类号： F02D41/029 , F01N3/0253 , F01N3/106 , F01N9/002 , F01N13/0097 , F01N13/011 , F01N2410/00 , F01N2560/12 , F01N2900/0601 , F01N2900/1602 , F01N2900/1606 , F02D2200/0812 , Y02T10/47
摘要： The present invention relates to an exhaust purification system and detects an amount of PM accumulated in a DPF with high precision. The exhaust purification system includes: a DOC (21) provided on an exhaust passage (12) of an engine (10); a DPF (22) provided on the exhaust passage (12) at a position downstream of the DOC (21) to collect the PM contained in exhaust gas; electrodes (27) that detect a capacitance of the DOC (21); a PM accumulation estimating unit (51) that estimates an amount of PM accumulated in the DPF (22) on the basis of the capacitance received from the electrodes (27); and a forced regeneration control unit (53) that injects fuels into the DOC (21) and performs forced regeneration that burns and removes at least the PM accumulated in the DPF (22) when the accumulated PM amount that is received from the PM accumulation estimating unit (51) surpasses a predetermined amount.
摘要翻译： 排气净化装置技术领域本发明涉及排气净化装置，能够高精度地检测DPF中堆积的PM的量。 该排气净化系统包括：设置在发动机（10）的排气通路（12）上的DOC（21）; 设置在所述排气通路（12）上的所述DOC（21）的下游侧的位置上并收集所述排气中所含的PM的DPF（22） 检测DOC（21）的电容的电极（27）; PM蓄积推定部（51），其基于从所述电极（27）输入的电容，推定所述DPF（22）中蓄积的PM的量; 以及强制再生控制部（53），其向所述DOC（21）喷射燃料，进行强制再生，该强制再生在从所述PM蓄积估计部接收到的所述累计PM量时，至少燃烧除去所述DPF（22） 单元（51）超过预定量。
-
公开(公告)号：EP3048276A1
公开(公告)日：2016-07-27
申请号：EP14846463.9
申请日：2014-09-18
申请人： Isuzu Motors Limited
CPC分类号： F01N11/00 , B01D53/9477 , B01D53/9495 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , B01D2257/404 , B01D2257/702 , F01N3/103 , F01N3/2066 , F01N13/009 , F01N2550/02 , F01N2590/08 , F01N2610/03 , F01N2900/1631 , Y02A50/2325 , Y02T10/47
摘要： The present invention relates to a diagnostic device which performs highly accurate diagnosis of the deterioration of a DOC. The diagnostic device includes: a DOC (15) for oxidizing HC and NO in an exhaust gas; an SCR catalyst (22) for reducing and purifying NOx contained in the exhaust gas; a NOx purification rate calculation unit (41) which calculates, based on NOx values at upstream and downstream sides of the SCR catalyst (22), a low temperature NOx purification rate and a high temperature NOx purification rate; a HC heat generation rate calculation unit (42) which calculates an HC purification rate based on at least the difference between the exhaust gas heat quantities at upstream and downstream sides of the DOC (15); and a deterioration determination unit (45) which determines the deterioration in the NO 2 producing capability of the DOC (15) based on the calculated low temperature NOx purification rate, the calculated high temperature NOx purification rate, and the calculated HC purification rate.
摘要翻译： 诊断装置技术领域本发明涉及对DOC的恶化进行高精度诊断的诊断装置。 诊断装置包括：用于氧化排气中的HC和NO的DOC（15） SCR催化剂（22），其用于还原和净化排气中所含的NOx; 基于所述SCR催化剂（22）的上游侧和下游侧的NO X值，计算低温NO X净化率和高温NO X净化率的NO X净化率计算部（41） 至少基于所述DOC（15）的上游侧和下游侧的废气热量之间的差异来计算HC净化率的HC生热率计算单元（42）; 以及劣化判定部（45），基于计算出的低温NO X净化率，计算出的高温NO X净化率和计算出的HC净化率，判定DOC（15）的NO 2生成能力的恶化。
-
公开(公告)号：EP3048275A1
公开(公告)日：2016-07-27
申请号：EP14845412.7
申请日：2014-09-18
申请人： Isuzu Motors Limited
CPC分类号： F01N11/002 , F01N3/021 , F01N3/023 , F01N3/0253 , F01N3/103 , F01N9/00 , F01N11/00 , F01N13/009 , F01N2430/06 , F01N2550/02 , F01N2590/08 , F01N2610/03 , F01N2900/1631 , Y02T10/47
摘要： The present invention relates to a diagnostic device which performs highly accurate diagnosis of the deterioration of a diesel oxidation catalyst (DOC). The diagnostic device includes: the DOC (15) for oxidizing HC contained in an exhaust gas; a temperature sensor (18) for detecting the exhaust gas temperature at a DOC (15) inlet; a temperature sensor (19) for detecting the exhaust gas temperature at a DOC (15) outlet; a temperature sensor (36) for detecting the ambient temperature; an HC heat generation rate calculation unit (41) which calculates, based on detection values of the temperature sensors (18, 19), the difference in the exhaust gas heat quantity between upstream and downstream sides of the DOC (15), calculates, based on the detection values of the temperature sensors (18, 19, 36), a heat loss quantity released to the outside air from the DOC (15), and adds the heat loss quantity and the exhaust gas heat quantity difference to calculate a heat generation quantity of HC in the DOC (15); and a DOC deterioration determination unit (42) which determines, based on the calculated HC heat generation quantity, deterioration of the DOC (15).
摘要翻译： 本发明涉及对柴油氧化催化剂（DOC）的劣化进行高精度诊断的诊断装置。 该诊断装置包括：用于氧化排气中所含的HC的DOC（15） 温度传感器（18），用于检测DOC（15）入口处的排气温度; 温度传感器（19），用于检测DOC（15）出口处的排气温度; 温度传感器（36），用于检测环境温度; 基于温度传感器（18,19）的检测值计算DOC（15）的上游侧和下游侧之间的废气热量差的HC发热速度计算单元（41），基于 根据温度传感器（18,19,36）的检测值计算从DOC（15）释放到外部空气中的热损失量，并且将热损失量和废气热量差值相加以计算发热量 DOC中的HC数量（15）; 和DOC恶化判定单元（42），其基于计算出的HC发热量判定DOC（15）的恶化。
-
公开(公告)号：EP3029303A1
公开(公告)日：2016-06-08
申请号：EP14831966.8
申请日：2014-07-31
发明人： HANAWA Satoshi , IKAI Yoshiaki
CPC分类号： F02D41/1447 , F02D41/1446 , F02D41/222 , F02D2041/1431 , F02M26/05 , F02M26/23 , G01K7/42 , G01K2205/04 , Y02T10/40
摘要： The present invention pertains to a sensor output value estimation device that effectively estimates sensor output values reflecting a response delay of a temperature sensor. The sensor output value estimation device includes an estimated gas temperature calculation unit (43) for calculating an estimated gas temperature of an engine (10) on the basis of at least a running condition of the engine (10) and a state quantity of the gas in the engine (10). The sensor output value estimation device also includes an estimated sensor output value calculation unit (44) for calculating an estimated sensor output value reflecting the response delay of the temperature sensor (31) on the basis of the calculated estimated gas temperature and a pre-stored first model formula specifying the relation among the temperature change time constant of the temperature sensor (31), the gas flow rate, and the gas temperature.
摘要翻译： 本发明涉及一种有效地估计反映温度传感器的响应延迟的传感器输出值的传感器输出值估计装置。 传感器输出值估计装置包括估计气体温度计算单元（43），用于基于发动机（10）的至少运行状态和气体的状态量来计算发动机（10）的估计气体温度 在发动机（10）中。 传感器输出值估计装置还包括：估计传感器输出值计算单元，用于根据计算出的估计气体温度计算出反映温度传感器（31）的响应延迟的估计传感器输出值，并且预先存储 第一模型公式指定温度传感器（31）的温度变化时间常数，气体流量和气体温度之间的关系。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.011 秒)
